Fix link errors: delete multiple and unused definitions of globals

This doesn't seem to compile right now. Fix it by adding
'extern' for symbols used across compilation units and
deleting some symbols that don't seem to be used in their
own compilation unit.

connect_socks.c

@@ -7,8 +7,6 @@
 #include <arpa/inet.h>
 #include <netinet/in.h>
 #include <dlfcn.h>
-int proxy_fds[65536];
-int len_proxy_fds = 0;
 char * socks_host = NULL;
 char * socks_port = NULL;
 

connect_socks.h

@@ -14,7 +14,7 @@ struct addrinfo *get_socks_addr(char *host, char *port);
 int get_socks_fd(struct addrinfo *res);
 int connect_socks(int sockfd, struct addrinfo *res);
 int set_socks_addr(char *host, char *port);
-char * socks_host;
-char * socks_port;
+extern char * socks_host;
+extern char * socks_port;
 void set_socks_info(char * host, char * port);
 #endif